Haswell Overclock Thread

noobftw · 27 Jul 2013 at 23:13

all c state modes are on auto, shall i enable them all or should they be working on normal? i also found the adaptive mode using the Intel extreme utility and changed it to adaptive and it blue screened after 30 seconds :/ i will try manually enabling c states in bios an report back, thanks for the info

tried changing power saving settings from auto to enabled but no look, voltage just stays at fixed volt

i think your right it may be to do with offset voltage and vrin voltage im not to sure, im a bit noobish to delve into that, sure would be nice to have the voltage throttle down along with the cpu frequency, i am safe in thinking that 1.21 is a safe 24 hour a day constant voltage though?

killoc · 27 Jul 2013 at 23:30

Enable them, and make sure windows is set to balance mode in power plan/option.

teppic · 27 Jul 2013 at 23:32

Yup, with mine set on manual 1.27v and C states set to enable, the voltages drop fine in Win 7.

killoc · 27 Jul 2013 at 23:34

@teppic

Didnt you have problem with your motherboard and planning to rma/exchange? if so, which board did you ended up with?

teppic · 27 Jul 2013 at 23:38

Yeah, I've returned the Asus and once it's refunded I'm going to order the Gigabyte OC

(My poor sig needs more strikethrough really)

noobftw · 27 Jul 2013 at 23:48

c states are enabled and power plan is balanced in windows 7 64bit voltage still want downclock, any1 with a ga z87x ud4h have same issues, im running bios f5

Shiari · 27 Jul 2013 at 23:51

noobftw said:
all c state modes are on auto, shall i enable them all or should they be working on normal?

You shouldn't need to touch those to get it to downclock on idle if they're already on auto. However, you do need to check the minimum processor usage % for the advanced power plan settings ... if that's not at 0% you wouldn't reach 0.8GHz on idle.

noobftw said:
i also found the adaptive mode using the Intel extreme utility and changed it to adaptive and it blue screened after 30 seconds :/ i will try manually enabling c states in bios an report back, thanks for the info

What settings did you use? On the ASRock boards we've found it needs to be ~1V for the adaptive voltage, and ~0.2-0.3V for the offset voltage (can't remember exactly what they values are called) to add up to your desired voltage. And for what it's worth, at least on the ASRock Extreme 6, setting the ~1V value lower than that actually increases the CPU Core Voltage massively (seen it go up to 1.5V!). That's something which is still confusing us.

noobftw said:
tried changing power saving settings from auto to enabled but no look, voltage just stays at fixed volt

You do need adaptive voltage rather than a voltage override to see the voltage go down at idle as well.

noobftw said:
i think your right it may be to do with offset voltage and vrin voltage im not to sure, im a bit noobish to delve into that, sure would be nice to have the voltage throttle down along with the cpu frequency, i am safe in thinking that 1.21 is a safe 24 hour a day constant voltage though?

vrin sounds like the "CPU Input Voltage", which is the main voltage provided to the CPU ... and that value must be at least 0.4V higher than the CPU Core Voltage (or the CPU won't get enough power).

As to safe voltages ... as long as the temperatures with that are fine, the voltage is essentially safe. 1.21V is perfectly fine.

noobftw · 27 Jul 2013 at 23:57

processor usage is set to 5% so ill change that to 0% instead, i will have to have a delve in to all that 2moz now as i just wna chillax now

hopefully ill get it sorted morrow, as i said i could only find an option to change the cpu to adaptive mode in the intel overcloking tool and it blue screened after 20 seconds so ill find out how to do it properly in bios instead

teppic · 27 Jul 2013 at 23:58

For my system, when I left C states on auto it didn't reduce the voltage, only the clock.

noobftw · 28 Jul 2013 at 00:07

everything is enabled though grrrrrrrrrrr

and power plan settings are balanced and set correctly

teppic · 28 Jul 2013 at 00:16

What happens if you set a manual voltage of 1.21 instead of adaptive?

noobftw · 28 Jul 2013 at 00:27

im currently running in manual mode at 1.21 volts as i just cannot seem to find adaptive mode in the uefi bios

Shiari · 28 Jul 2013 at 00:57

noobftw said:
im currently running in manual mode at 1.21 volts as i just cannot seem to find adaptive mode in the uefi bios

If you have a fat32 formatted usb stick around, insert it into a usb slot and hitting F12 in UEFI should save a screenshot to it. (Without knowing what the settings look like for your board and UEFI settings it's a lot harder to help).

This is what it looks like for me (its the CPU Vcore voltage Mode):

james_2k · 28 Jul 2013 at 09:54

if c3/6/7 etc is enabled it downvolts even with manual voltage i noticed.

noobftw · 28 Jul 2013 at 11:44

f12 didnt take screenshots so i just did it on my phone instead

Also llc is on auto

wazza300 · 28 Jul 2013 at 13:02

the voltage won't drop at idle if you use a fixed cpu amount,i wouldn't leave llc on auto either

and f12 should work for screenshots and a usb stick formatted to fat32

you set cpu voltage to normal then it should unlock dvid or adaptive voltage for adjustment,correct me if im wrong though as im on ivy

noobftw · 28 Jul 2013 at 16:04

what should i put my load line calibration on - extreme and should i change my uncore to 4.4ghz also or shall i leave it at 3.5, thanks for info guys

wazza300 · 28 Jul 2013 at 16:06

for 4.2ghz set llc to low,keep an eye on load cpu voltage with each llc setting

maybe 3.6/3.7 uncore for 4.2ghz

james_2k · 28 Jul 2013 at 16:19

wazza300 said:
the voltage won't drop at idle if you use a fixed cpu amount,i wouldn't leave llc on auto either

it does on mine, volts set to manual

wazza300 · 28 Jul 2013 at 16:35

gigabyte are different,normal and auto it will

pretty sure it won't throttle in volts if you use a fixed amount